1001320112 has 20 divisors (see below), whose sum is σ = 2089293360. Its totient is φ = 462147648.

The previous prime is 1001320097. The next prime is 1001320139. The reversal of 1001320112 is 2110231001.

It is a junction number, because it is equal to n+sod(n) for n = 1001320093 and 1001320102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2406812 + ... + 2407227.

It is an arithmetic number, because the mean of its divisors is an integer number (104464668).

Almost surely, 2^1001320112 is an apocalyptic number.

It is an amenable number.

1001320112 is an abundant number, since it is smaller than the sum of its proper divisors (1087973248).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1001320112 is a wasteful number, since it uses less digits than its factorization.

1001320112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4814060 (or 4814054 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 1001320112 is about 31643.6425210499. The cubic root of 1001320112 is about 1000.4398438424.

Adding to 1001320112 its reverse (2110231001), we get a palindrome (3111551113).

The spelling of 1001320112 in words is "one billion, one million, three hundred twenty thousand, one hundred twelve".